Nantucket Memorial to Martin State Airport ACK → MTN
313 nautical miles (360 statute miles) west on a straight line, true course 250°, about 264° magnetic at the departure end (variation 14W). At 120 knots that is 2 h 45 min at the quickest height in today's winds (4,500 ft, a 6-knot headwind), arriving about 12:40 am EDT (04:40 UTC), after sunset at the destination. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 5 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- AIRMET SIERRA 3E: low cloud or poor visibility (IFR conditions) (due to ceilings below 1,000 ft, visibility below 3 miles, precipitation, mist). Over the whole route.
- AIRMET TANGO 2W: moderate turbulence below 18,000 ft up to 13,000 ft. Over the first 196 nm of the route.
- AIRMET TANGO 3W: moderate turbulence above 18,000 ft from 21,000 ft to 33,000 ft. Over the last 20 nm of the route.
A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from ACK.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- BCS3 at 18,000 ft, 38 nm north, 8:17 pm EDT (00:17 UTC): moderate chop turbulence, remarks: moderate CHOP180-210 smooth above 22,000 ft. 29 nm along the route, 38 nm north of the line.
as filed, and in English
EWB UA /OV EWB/TM 0017/FL180/TP BCS3/TB MOD CHOP/RM MOD CHOP180-210 SMOOTH ABOVE FL220
- Report
- a routine report filed through EWB
- Where
- over EWB
- Time
- 00:17 UTC
- Height
- at 18,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate chop
- Remarks
- moderate CHOP180-210 smooth above 22,000 ft
- BCS3 at 8,000 ft, 28 nm north, 6:58 pm EDT (22:58 UTC): moderate turbulence, remarks: during the descent. 98 nm along the route, 28 nm north of the line.
as filed, and in English
JPX UA /OV JPX360010/TM 2258/FL080/TP BCS3/TB MOD/RM DURD
- Report
- a routine report filed through JPX
- Where
- 10 nm north (360°) of JPX
- Time
- 22:58 UTC
- Height
- at 8,000 ft
- Aircraft
- BCS3
- Turbulence
- moderate
- Remarks
- during the descent
- BCS3 at 4,000 ft, 34 nm north, 8:42 pm EDT (00:42 UTC): moderate turbulence, imc. 137 nm along the route, 34 nm north of the line.
as filed, and in English
BDR UA /OV BDR180010/TM 0042/FL040/TP BCS3/WX IMC/TB MOD
- Report
- a routine report filed through BDR
- Where
- 10 nm south (180°) of BDR
- Time
- 00:42 UTC
- Height
- at 4,000 ft
- Aircraft
- BCS3
- Weather
- instrument conditions
- Turbulence
- moderate
- TBM9 descending, 23 nm northwest, 7:45 pm EDT (23:45 UTC): moderate turbulence, a broken layer above 700 ft. 137 nm along the route, 23 nm northwest of the line.
as filed, and in English
ISP UA /OV ISP/TM 2345/FLDURD/TP TBM9/SK BKN007/TB MOD
- Report
- a routine report filed through ISP
- Where
- over ISP
- Time
- 23:45 UTC
- Height
- during the descent
- Aircraft
- TBM9
- Sky
- a broken layer from 700 ft
- Turbulence
- moderate
- A32N , 25 nm northwest, 7:01 pm EDT (23:01 UTC): moderate turbulence. 166 nm along the route, 25 nm northwest of the line.
as filed, and in English
JFK UA /OV JFK10008/TM 2301/FL3000/TP A32N/TB MOD TURB
- Report
- a routine report filed through JFK
- Where
- JFK10008
- Time
- 23:01 UTC
- Height
- at 300,000 ft
- Aircraft
- A32N
- Turbulence
- moderate turbulence
- A333 at 3,000 ft, 1 nm northeast, 7:10 pm EDT (23:10 UTC): moderate turbulence. 176 nm along the route, 1 nm northeast of the line.
as filed, and in English
JFK UA /OV JFK180025/TM 2310/FL030/TP A333/TB MOD TURB
- Report
- a routine report filed through JFK
- Where
- 25 nm south (180°) of JFK
- Time
- 23:10 UTC
- Height
- at 3,000 ft
- Aircraft
- A333
- Turbulence
- moderate turbulence
- B38M at 6,000 ft, 35 nm north, 8:47 pm EDT (00:47 UTC): moderate turbulence. 186 nm along the route, 35 nm north of the line.
as filed, and in English
EWR UA /OV 2 NW OF EWR/TM 0047/FL60/TP B38M/TB MODERATE
- Report
- a routine report filed through EWR
- Where
- 2 northwest of ewr
- Time
- 00:47 UTC
- Height
- at 6,000 ft
- Aircraft
- B38M
- Turbulence
- moderate
- CRJ7 at 15,000 ft, 14 nm north, 8:07 pm EDT (00:07 UTC): moderate chop turbulence. 196 nm along the route, 14 nm north of the line.
as filed, and in English
BLM UA /OV COL/TM 0007/FL150/TP CRJ7/TB MOD CHOP
- Report
- a routine report filed through BLM
- Where
- over COL
- Time
- 00:07 UTC
- Height
- at 15,000 ft
- Aircraft
- CRJ7
- Turbulence
- moderate chop
- A21N at 18,000 ft, 34 nm northwest, 8:38 pm EDT (00:38 UTC): moderate clear-air turbulence. 254 nm along the route, 34 nm northwest of the line.
as filed, and in English
PTW UA /OV PTW/TM 0038/FL180/TP A21N/TB MOD CAT
- Report
- a routine report filed through PTW
- Where
- over PTW
- Time
- 00:38 UTC
- Height
- at 18,000 ft
- Aircraft
- A21N
- Turbulence
- moderate clear-air turbulence
- E75L at 20,000 ft, 6 nm north, 8:41 pm EDT (00:41 UTC): moderate turbulence above 20,000 ft. 274 nm along the route, 6 nm north of the line.
as filed, and in English
ILG UA /OV DQO/TM 0041/FL200/TP E75L/TB MOD 200
- Report
- a routine report filed through ILG
- Where
- over DQO
- Time
- 00:41 UTC
- Height
- at 20,000 ft
- Aircraft
- E75L
- Turbulence
- moderate at 20,000 ft
- BCS3 at 19,000 ft, 22 nm south, 8:18 pm EDT (00:18 UTC): moderate turbulence above 17,000 ft, -9 °C. 274 nm along the route, 22 nm south of the line.
as filed, and in English
DOV UA /OV ENO/TM 0018/FL190/TP BCS3/TA M09/TB MOD 170
- Report
- a routine report filed through DOV
- Where
- over ENO
- Time
- 00:18 UTC
- Height
- at 19,000 ft
- Aircraft
- BCS3
- Temperature
- −9 °C
- Turbulence
- moderate at 17,000 ft
- E145 at 12,000 ft, 42 nm north, 8:43 pm EDT (00:43 UTC): moderate turbulence. 293 nm along the route, 42 nm north of the line.
as filed, and in English
LNS UA /OV LRP/TM 0043/FL120/TP E145/TB CONS MOD
- Report
- a routine report filed through LNS
- Where
- over LRP
- Time
- 00:43 UTC
- Height
- at 12,000 ft
- Aircraft
- E145
- Turbulence
- continuous moderate
- B764 at 35,000 ft, 31 nm south, 7:18 pm EDT (23:18 UTC): light to moderate turbulence. At the departure end, 31 nm south of the line.
as filed, and in English
ACK UA /OV ACK200035/TM 2318/FL350/TP B764/TB LGT OCNL MOD
- Report
- a routine report filed through ACK
- Where
- 35 nm south (200°) of ACK
- Time
- 23:18 UTC
- Height
- at 35,000 ft
- Aircraft
- B764
- Turbulence
- light occasional moderate
- BE40 at 16,000 ft, 16 nm northwest, 7:02 pm EDT (23:02 UTC): light to moderate chop turbulence. At the departure end, 16 nm northwest of the line.
as filed, and in English
MVY UA /OV MVY090010/TM 2302/FL160/TP BE40/TB LGT OCNL MOD CHOP
- Report
- a routine report filed through MVY
- Where
- 10 nm east (090°) of MVY
- Time
- 23:02 UTC
- Height
- at 16,000 ft
- Aircraft
- BE40
- Turbulence
- light occasional moderate chop
16 more routine reports are on the map.
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed
The westbound cruising heights for this course (VFR: even thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 3 forecast points nearest it (ACK, JFK, ACY). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 4,500 ft | 170° at 22 kt | +6 kt | 114 kt | 2 h 45 min | 12:40 am EDT (04:40 UTC) | |
| 6,500 ft | 190° at 25 kt | +14 kt | 12 °C | 106 kt | 2 h 57 min | 12:52 am EDT (04:52 UTC) |
| 8,500 ft | 220° at 26 kt | +22 kt | 10 °C | 98 kt | 3 h 12 min | 1:07 am EDT (05:07 UTC) |
| 10,500 ft | 230° at 28 kt | +27 kt | 7 °C | 93 kt | 3 h 22 min | 1:17 am EDT (05:17 UTC) |
| 12,500 ft | 240° at 32 kt | +31 kt | 4 °C | 89 kt | 3 h 31 min | 1:26 am EDT (05:26 UTC) |
| 14,500 ft | 240° at 35 kt | +34 kt | 0 °C | 86 kt | 3 h 38 min | 1:33 am EDT (05:33 UTC) |
| 16,500 ft | 240° at 38 kt | +38 kt | -4 °C | 82 kt | 3 h 49 min | 1:44 am EDT (05:44 UTC) |
| 18,000 ft FL180 | 240° at 41 kt | +40 kt | -7 °C | 80 kt | 3 h 55 min | 1:50 am EDT (05:50 UTC) |
| 24,000 ft FL240 | 240° at 50 kt | +49 kt | -17 °C | 71 kt | 4 h 25 min | 2:20 am EDT (06:20 UTC) |
| 30,000 ft FL300 | 230° at 69 kt | +67 kt | -31 °C | 53 kt | 5 h 54 min | 3:49 am EDT (07:49 UTC) |
| 34,000 ft FL340 | 240° at 76 kt | +74 kt | -41 °C | 46 kt | 6 h 48 min | 4:43 am EDT (08:43 UTC) |
| 39,000 ft FL390 | 240° at 85 kt | +84 kt | -54 °C | 36 kt | 8 h 42 min | 6:37 am EDT (10:37 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| ACK | used from 0 nm out; 24 nm from the line | 150/19 | 170/30 8° | 210/31 9° | 230/42 3° | 250/44 -7° | 250/50 -17° | 240/62 -32° | 250/71 -42° | 250/86 -55° |
| JFK | used from 98 nm out; 55 nm from the line | 140/43 | 170/35 13° | 230/18 9° | 250/25 5° | 240/40 -7° | 230/50 -17° | 230/75 -31° | 230/78 -41° | 230/88 -53° |
| ACY | used from 196 nm out; 29 nm from the line | 230/15 | 230/22 15° | 230/31 11° | 230/27 6° | 230/40 -7° | 230/51 -17° | 230/71 -31° | 230/81 -41° | 230/86 -53° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| ACK Nantucket, MA | departure | no report just now | 46 ft | ||||
| MVY Vineyard Haven, MA | 20 nm out, 16 nm northwest of the line, tower | no report just now | 66 ft | ||||
| BID Block Island, RI | 68 nm out, 19 nm north of the line | no report just now | 107 ft | ||||
| FOK Westhampton Beach, NY | 117 nm out, 18 nm north of the line, tower | no report just now | 66 ft | ||||
| ISP New York, NY | 137 nm out, 23 nm northwest of the line, tower | no report just now | 98 ft | ||||
| MJX Toms River, NJ | 205 nm out, 6 nm south of the line | no report just now | 86 ft | ||||
| PHL Philadelphia, PA | 254 nm out, 10 nm north of the line, tower | no report just now | 35 ft | ||||
| ILG Wilmington, DE | 274 nm out, 6 nm north of the line, tower | no report just now | 79 ft | ||||
| MTN Baltimore, MD | destination | no report just now | 22 ft |
The highest airport on this list sits at 107 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At MTN when you get there the forecast at the estimated arrival, 12:40 am EDT (04:40 UTC)
MTN has no terminal forecast; use the nearest airport that does.
Temporary flight restrictions on the line or within 25 nm of it
- 4/9383 WASHINGTON, DC., USA 10 nm from the route, at the destination end · security · ZDC
- 6/8800 Baltimore, MD, Saturday, October 17, 2026 through Sunday, October 18, 2026 UTC 9 nm from the route, at the destination end · drones kept away from a public gathering · starts Saturday 17 October · ZDC
Daylight
Sunset at ACK 6:04 pm EDT (22:04 UTC), at MTN 6:31 pm EDT (22:31 UTC) (civil twilight ends 6:58 pm EDT (22:58 UTC)). At 120 knots the arrival at MTN is before sunrise there (7:12 am EDT (11:12 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Nantucket Memorial, Martin State Airport.